CBaseControlVideo::put_SourceTop
| Microsoft DirectShow 9.0 |
CBaseControlVideo::put_SourceTop
The put_SourceTop method sets the top coordinate of the source rectangle.
Syntax
HRESULT put_SourceTop(
long SourceTop
);
Parameters
SourceTop
New top coordinate of the source rectangle.
Return Value
Returns an HRESULT value that depends on the implementation; can be one of the following values, or other values not listed.
| Value | Description |
| E_FAIL | Failure. |
| E_INVALIDARG | Invalid argument. |
| E_POINTER | Null pointer argument. |
| NOERROR | Success. |
| VFW_E_NOT_CONNECTED | The operation cannot be performed because the pins are not connected. |
Remarks
An application can change the source and destination rectangles for the video through the IBasicVideo interface. The source rectangle affects which section of the native video source will appear on the display; the destination rectangle affects where the video will appear when played. The destination rectangle is relative to the client area of the window in which it is playing. The upper-left corner of the window is coordinate (0,0).
Requirements
** Header:** Declared in Ctlutil.h; include Streams.h.
** Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).
See Also